The rate of change can be found by calculating the slope of the line passing through the two points given.
Slope = (change in y) / (change in x)
Slope = (30-15) / (8-4)
Slope = 15 / 4
Slope = 3.75
Therefore, the rate of change in the cost of gas as each gallon is pumped is $3.75 per gallon.
Slope in Real-World Problems Practice
Complete this assessment to review what you've learned. It will not count toward your grade.
4 of 54 of 5 Items
Question
A graph of the cost of gas purchased depending on the number of gallons pumped has the points (4,15)
and (8,30)
. What is the rate of change in the cost of the gas as each gallon is pumped?(1 point)
$
per gallon
1 answer